Ice Cube Tray for Tumbler Cup 30Oz-40Oz, 3 Pcs Silicone Cylinder Ice Mold with Lid and Bin for Freezer, Easy Fill and Release Ice Maker for Whiskey, Cocktail BPA-Free

This works exactly as it should. The ice molds fits my 40oz Stanley well. Seems to be of good quality, easy to clean, and in a cute pink color.

Was perfect for my 40 new tumbler. Came quick, freezes quick and I love the storage container for making multiple batches

I requested these so I could put ice in my Yeti and still get my metal straw into the cup! The ice freezes so quickly and thoroughly in the metal interior I can't insert the straw. They are a bit difficult to remove, but I am learning to give the mold a good twist before I pull it away from the ice and that works better. Not easy to get out in a hurry, that's for sure! but they do work with the metal straws.

These ice molds have become an essential part of my daily routine. They’re the perfect fit for my Hydrapeak 40oz cup, and their thick design means the ice lasts for half the day—even with me refilling my cup 2-3 times. I love how reliable and durable they are, making every sip refreshingly cold. If you’re looking for ice molds that can keep up with an active hydration habit, these are a fantastic choice!

I was really excited about the idea of this product. I use a Yeti 42 oz straw cup to drink Iced Tea. I like it very cold. As the ice melts and I refill the cup I normally just add ice - easy and obvious enough. With this I either have to throw away the non-melted ice, and start new or just add ice like I normally would. If I do the latter, why use this to begin with?All in all the design kind of lacks too, you fill up the trays, then you have to work to get the ice out of the mold. I have found that running under water helps - again obvious. But I was really hoping this would more just pop out.Therefore, this has just added one convenience for me, the easy of being able to drop the straw to the bottom of the cup without work.Adding that it is not dishwasher safe - but not documented to allow or disallow.

What a cool idea. The ice is a bit of a challenge to get out. Don’t fill the water to the top. You will have a hard time getting the lid on your mug. I’d recommend.

Our ice maker died in the fridge and there was no way I could go without ice for my Stanley Tumbler and all the pretend water I drink during the day. First world problems- right?!?! Ok- so I am more a coffee by day, wake up a million times in the night, to get a sip of water person- but I like it to be cold. And I also need cold ice water to last when I stay up late to read ACOTAR. The ice machine dying was an excuse for me to overnight ship this and try it out. Like others have said- the lid is hard to fit and useless, unless you decide to use the container separately from the silicone mold. But…it is a silicone mold, so ya kinda need the base container. Don’t totally fill or over fill the three levels. 1 goes at the bottom (I thought they would nest inside themselves and tried to put 3 in first) but my much smarter teen showed me otherwise. Duh on my part. Ok- so a bit tricky to pull out, but not hard- did I just say that- this applies to ice molds only! Put some elbow grease into rolling and pulling the silicone mold back off the level you are working on. Then squeeze together the center numbered part and push it down as you pull from the bottom and then you should be able to pull up on the ice ring, to get if off (oof- not sure how else to explain that…can you tell I am reading ACOTAR?). Yes- your fingers are going to freeze. Take breaks in between layers if needed- don’t get frost bite- not fun and makes it hard to fly. BUT…it is worth it, they stack great in the 40oz and stay cold for over 24 hrs. And it looks cool when you drop them in. Just be cautious, level 1, when it clinks into the bottom, can be loud. My dogs think it warrants barking, but they are silly. All in all- highly recommend if you want fun, satisfy, long lasting, ice rings for your tumbler. If you know someone that loves their Stanley- it would be a great gift!

Bought this as a gift for my daughter, she loves it! She said ice lasts all day.